Any hat experts?

[upandabout]

Box at Ascot, corporate do.
The guidelines suggest 'dress for a smart occasion, hats are encouraged'.
I'm thinking one of these but would love some hat suggestions.
I'm 5'9, will wear a mid heel and am not a big attention seeker.

m.johnlewis.com/john-lewis-erin-2-disc-feather-quill-occasion-hat/p/3149942

m.johnlewis.com/john-lewis-belle-shantung-disc-and-loop-occasion-hat/p/3155227

Do you have somebody near you who hires hats? Dm hired one for my wedding. The lady helped her choose one perfectly to go with her outfit. Hire was about £35 iirc.

Sadly no hire places nearby but can do JL and deliver to Waitrose.
I like the navy disc, would it matter if it's not the same shade of navy?
Thank you for the help.